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heavy elm bow, advice for measurements

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Marc St Louis:
I have made a few Elm warbows.  One that I made for a guy that was around that draw weight was damaged during shipping, one tip was crushed, so I made him a replacement and he shipped the damaged one back.  The damage was repairable and I still have the bow.  It's not a full D section bow such as you would see with Yew, more flattened but still rounded belly.  If the Elm is good quality it will handle a round belly if properly tillered

This is a picture of the replacement bow at it's full draw of 32"

Aksel:
Thanks for your reply Marc, that´s a very nice bow. How tall / wide/ thick was it? Actually I re´read your chapter on heat treating in TBB4 last night :)

This 76" stave has dried into 3" reflex, is pipe straight and knot free. Specific gravity is .68 and my experience with my local elm tells me it is of very good quality.

I know you heat treat your bows, but if I won´t, - would you recommend other measurements or precautions than 1,4 -1,5 inches max width for a starting point for 76" 100 lbs @ 32" ?

If it comes out low set and good tiller at 100 lbs I might try and pike it to see if I can push it. One thing at the time..

The picture included is of my old heavy elm bow from 2006. Estimated 90-100 lbs on the results I got distance shooting.  I think the tiller was decent, but probably not good enough as it developed a couple of chrysals on a rounded deep belly. Maybe was the tiller too elliptical..?

RyanY:
Not the best angle to tell the tiller. How much of the limb has chrysals? If it was localized to the mid/outer limbs, I’d suspect a tillering issue. If it was along the whole bow, I’d suspect the rounded belly was the issue.

Aksel:
 The chrysals were like thin hairs on 2 spots upper limb and one on lower. Both limbs chrysaled on inner mid limb. Was nothing major but I soon threw it away afraid it would kill me if it broke but in hindsight it could probably have kept shooting for a while. But since I was a "green" bowyer then, I´d suspect tillering flaws.

Here´s the stave btw.

superdav95:
I’ve not made an elm war style bow yet myself.  On my list to do as I wait on my elm stash to dry.  Looking at your bend compared to Marc’s bend it looks like more bend in handle perhaps may have been better???   Hard to say with the angle of the photo but possibly more bend they handle may have resolved some Chrystal issues. 

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